Paper engine or beater.



PATENTED DEC. 11, 1906.

H- MoGILL.

PAPER ENGINE 0R APPLICATION 11 111) AU BEATEE.

v/fIIlIf/fIff/If lflr fllldqfll HENRY MCGILL, OF SOUTH HADLEY FALLS, MASSACHUSETTS.

PAPER ENGINE OR BEATER.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed August 24,1906. Serial No. 331,857.

To ctZZ whom it ntcty concern.- Be it known that I, HENRY zen of the United States of America, and a resident of South Hadley Falls, in the county of Hampshire and State of Massachusetts, have invented certain new and useful Imrovements in Paper Engines or Beaters, of which the following is a full, clear, and exact description.

This invention is comprised in the combinat on, with the receptacle or vat of a beating-engine having a mid-feather and an axially-horizontal peripherally-bladed beaterroll between and with its ends separated from the side wall of the receptacle and from the mid-feather, of pulp-stops in the spaces between the ends of the beater-roll and the said site wall and mid-feather adjacent the lower rearward portion of the roll, the objectof the invention in the provision or combination of the pulp-stops in the stated situation being to prevent the flow of substantial quantities of the pulp between the ends of the bladed roll and the vertical walls adjacent thereto, but separated therefrom, and thereby insuring an avoidance of a churning of the pulp and the frothing thereof within the spaces adjacent the ends of the roll.

The improved beater is illustrated in the accompanying drawings, in which Figure 1 is a vertical longitudinal sectional view, and Fig. 2 is a plan view, the section line 1 1 on Fig. 2 indicating the plane of section on which Fig. 1 is taken. Fig. 3 is a perspective view of one of the duplicated pulp-stops.

In the drawings, A represents the receptacle or tank comprised in the beating-engine, the same having, as usual, the mid feather B, between which and one side wall a of the receptacle is journaled the beater-roll C, having suitably spaced on its circumference a series of longitudinally-extending and radially-projecting beater-blades b b. The axially-horizontal roll and its blades have a length somewhat less than the distance between the side of the mid-feather B and the side wall a of the receptacle, whereby spaces (1 d are left between the opposite ends of the roll and such walls, through which a portion of the pulp in its circuitous course around in the beater has heretofore been permitted to flow with the effect of a churning and frothproducing result.

D D represent the pulp-stops, each con- McGILIQ, a citisisting of a flat plate f, having holes for the passage therethrough of attachment-screws g g and curved flange-like members h h, as clearly shown in the drawings. These stops are by the screws 9 g fastened on the receptacle-wall a and mid-feather in opposed locations, with the curved flange-like members projecting inwardly toward the opposite ends of the roll and with their positions adjacent the circular path of the beater-roll blades 1) and near the lower rearward portion of the roll and to the rear of the bladed bed G. The pulp repeatedly moving forwardly from the beater-roll passes ward end of the mid-feather, back around the rear end of the mid-feather, and forwardly again between the beater-roll and bed, puwardly to and over the back-fall j, substantial portion thereof entering in the space between the ends of the roll and the walls adjacent thereto because of the presence of the stops D D, as manifest. By precluding the possibility of any portion of the stock in the beater passing into the spaces at the ends of the rolls adjacent the bed-plate the entire contents of the beater must move more frequently under and subject to the action of the roll.

It has been proposed to construct a beating-engine with the beater-rolls so long as to practically fill the space between the midfeather and one side wall, but largely-increased power is required to drive the roll in a receptacle of a desired width, it being usual to provide a receptacle A capable of receiving about two tons of stock or pulp, and therefore a beating apparatus made comparatively wide, as illustrated, having the spaces between the ends of the roll and the walls between which it is located and with the pro vision of the pulp-stops, as shown, amounts to an actual and substantial improvement over those at present most commonly used.

I claim 1. In a paper-pulp-beating engine, the receptacle having the mid-feather, and the axially-horizontal beater-roll between, and with its ends separated from, the side wall of the receptacle and from the mid-feather, and pulp-stops in the spaces between the ends of the beater-roll and the said side wall and mid-feather, adjacent the lower rearward portion of the roll.

. 2. In a paper-pulp-beating engine, the combination with the receptacle having the around the forwith no mid-feather and the axially-horizontal perihpsite ends of the roll, and located adjacent the erally-bladed beater-r0ll between and with circular path of the beater-roll blades.

its ends separated from the side Wall of the Signed by me at Springfield, Massachureceptacle and from the mid-feather, of plates, setts, this 17th day of August, 1906.

having means for their attachment on the re- HENRY MOGILL. ceptacle side wall and on the mid-feather, which plates are formed with curved flangelike members projecting toward the oppo- Witnesses:

WM; S. BELLows, G. R. DRISGOLL. 

